* Added -Wno-unused-parameter where -Wextra is used (we don't useless warnings 
about every unused argument)

* Added -Wno-sign-compare to CoreObject target (but I guess we want to enable it)


git-svn-id: svn://svn.gna.org/svn/etoile/trunk/Etoile/Frameworks/CoreObject@9914 7b3f36aa-e6db-49c1-8b4c-66eac1997e64